Algae

National Water Quality Month

Aug 29, 2025 | Algae, Nutrients, Our River, Pollutants

August is National Water Quality Month, a time to recognize the critical importance of clean water for public health, the environment, and our economy. Safe, unpolluted water supports drinking supplies, agriculture, and healthy ecosystems. This month serves as a...

5 Things to Know About Blue-Green Algae

Jun 11, 2025 | Algae, Bacteria, Nutrients, Our River, Pollutants, River Friendly

“Algae Season” is, unfortunately, in full bloom in the St. Johns River watershed. Harmful algae blooms (HABs) can prevent sunlight from reaching underwater plants (like the submerged aquatic vegetation we are fighting to SAVe), clog fish gills, and deplete oxygen from...

May 2025 SAVe Our River’s Grasses Expedition Breakdown

Jun 6, 2025 | Algae, Habitat Loss and Degradation, Nutrients, Our River, SAVs

From May 27–30, 2025, St. Johns RIVERKEEPER (SJRK) conducted the first field visit of Year 3 of the SAVe Our River’s Grasses Expedition, continuing efforts to investigate the alarming decline of submerged aquatic vegetation (SAV) in the St. Johns River. The team...

2024 St. Johns Riverkeeper Recap

Jan 15, 2025 | Algae, Community, Education, Events, Habitat Loss and Degradation, Ocklawaha River, Our River, Pollutants, Resilient Ribault, SAVs, Upper Basin/Headwaters, Wetland Impacts

As we enter our 25th anniversary year, we are grateful for your support and our joint accomplishments over the past quarter century – for the river – to ensure a healthy river ecosystem for generations to come. Today, we reflect on 2024 and our annual progress and...

SAVe Our River’s Grasses: October 2024 Field Visit

Nov 14, 2024 | Algae, Events, Habitat Loss and Degradation, Our River, SAVs

In late October, St. Johns RIVERKEEPER (SJRK) returned to the river for its third and final 2024 field visit as part of the five-year SAVe Our River’s Grasses Expedition. This trip wrapped up year two of the expedition. We continue to seek answers that will lead...

2024 State of the River Report

Oct 15, 2024 | Algae, Bacteria, Climate Change, Community, Dredging, Habitat Loss and Degradation, Nutrients, Our River, Pollutants, SAVs, Tributaries, Wetland Impacts

The just-released 2024 State of the River Report for the Lower St. Johns River Basin (LSJRR) once again reveals significant reason for concern regarding the fragile health of our river and its tributaries. While a few of the river health indicators seem to be...

Hurricane Preparedness in the St. Johns Watershed

Sep 25, 2024 | Algae, Climate Change, Community, Habitat Loss and Degradation, Our River, Pollutants, Resilience, River Friendly, Tributaries

With Hurricane Helene threatening to affect the St. Johns River watershed, we want to share some hurricane season reminders as we work to keep our families and our river safe. The NOAA predicted above-normal hurricane activity in the Atlantic basin this year during...

August Expedition Summary: SAVe Our River’s Grasses

Sep 13, 2024 | Algae, Habitat Loss and Degradation, Our River, SAVs

In August, St. Johns RIVERKEEPER (SJRK) returned to the river for its second field visit of the 2024 SAVe Our River’s Grasses Expedition seeking answers and solutions to help the struggling SAV of the St. Johns. Submerged aquatic vegetation (SAV) is the...

Be Prepared: Algae Bloom Season

May 16, 2024 | Algae, Nutrients

Toxic blue-green algae outbreaks, or harmful algae blooms (HABs), are increasing in duration and frequency – threatening our waterways and our own health. St. Johns RIVERKEEPER (SJRK) has already gotten reports of blooms this year throughout the watershed from...

2023 St. Johns Riverkeeper Recap

Jan 12, 2024 | Algae, Climate Change, Community, Education, Explore the River, Habitat Loss and Degradation, Our River, Pollutants, Resilient Ribault

St. Johns RIVERKEEPER (SJRK) is the voice for the St. Johns River. As the only nonprofit organization solely dedicated to protecting the St. Johns, we work tirelessly to ensure we are prioritizing initiatives that will most benefit the river and the communities that...